# N4ZH: 1968 Bell 206B, registration cancelled 2011-02-14

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 14, 2011
- Status when cancelled: Revoked, pending cancellation
- Airframe: [Bell 206B](https://openairdocs.org/model/bell-206b) (registry code 1181511)
- Engine: [Allison 250 SER 250HP](https://openairdocs.org/engine/allison-250-ser-250hp) (registry code 03002)
- Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW) (OpenAirDocs)
- Serial number: 170
- Year built: 1968
- Type of aircraft: Rotorcraft
- Engine type: Turbo-shaft
- Certificate issued: February 4, 1975
- Last registry action: February 22, 1977
- Mode S code: A4AA36
- Owner when cancelled: [Corvallis Aero Service Inc](https://openairdocs.org/faa-owner/CORVALLIS%20AERO%20SERVICE%20INC)
- Location: [Corvallis, OR](https://openairdocs.org/faa-place/OR/Corvallis)
- Owner type: Corporation
- Owner's area on the map: 44.6480° N, 123.2596° W: Placed by OpenAirDocs at the center of ZIP code 97330, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4ZH
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4ZH
- Page: https://openairdocs.org/deregistered/N4ZH-2011-02-14

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Bell 206B: https://openairdocs.org/model/bell-206b.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB SEA78FYM33](https://openairdocs.org/ntsb/SEA78FYM33), May 15, 1978: Bell 206B (N4ZH), Tillamook, OR, destroyed

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 19780515023299A](https://openairdocs.org/incident/19780515023299A), May 15, 1978: Bell 206B (N4ZH), Tillamook, OR, Destroyed. Logging opns. Cable caught on l skid.

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